The Open Petroleum Engineering Journal

2014, 7 : 92-98
Published online 2014 December 31. DOI: 10.2174/1874834101407010092
Publisher ID: TOPEJ-7-92

Research on Inhibition Effect of Vortex-Induced Vibration of Submarine Pipeline with Horizontal Spoilers

Liu Long , Dong Dongshan and Mei Xiao
Logistics Engineering College, Shanghai Maritime University, Shanghai, 201306, P.R. China.

ABSTRACT

This study discusses hydrodynamic effects of horizontal spoilers fixed on submarine pipelines. Numerical calculations are conducted to investigate the influences of the spoiler on flow profile, vortex shedding frequency, drag coefficients and lift coefficients. The calculation results demonstrate that attached horizontal spoilers could change the wake flow and enhance the self-burial of the pipeline. Moreover, the vortex-inhibition effects of different sizes of spoiler are discussed. The length of horizontal spoilers between 1.0D~1.5D has the optimal effect. The results would be promising for the application to submarine pipelines.

Keywords:

Hydrodynamic effects, pipeline, spoiler, submarine, vortex shedding.